api: add osmo_pfcp_ie_node_id_to_str_c()

So far we had only osmo_pfcp_enc_to_str_node_id(), used for PFCP message
to string conversion. It behaves like a common _to_str_buf() function,
but has an inconvenient void* arg (for use with libosmo-tlv).

Implement the string conversion as common _to_str_buf() and _to_str_c()
functions, and call that from osmo_pfcp_enc_to_str_node_id(). That's
useful for log messages coming up in a subsequent patch.

Related: SYS#5599
Change-Id: I5c580bc510afce58a03dea0861db9630b063b2ae

0 files changed, 0 insertions, 0 deletions